Active Lane Departure Warning System - CITROEN C5 AIRCROSS Handbook

The following situations may interfere with
the operation of the system or prevent it
from working:
- poor visibility (inadequate lighting of
the road, falling snow, heavy rain,
dense fog, etc.),
- dazzle (headlamps of an oncoming
vehicle, low sun, reflections on a damp
road, leaving a tunnel, alternating
shade and light, etc.),
- windscreen area located in front of the
camera: dirty, misted up, frost-covered,
snow-covered, damaged or covered by
a sticker,
- lane markings absent, worn, hidden
(snow, mud) or multiple (roadworks,
etc.),
- close to the vehicle ahead (lane
markings not detected),
- roads that are narrow, winding, etc.
Active Lane Departure
Warning System
Refer to the General recommendations on
the use of driving and manoeuvring aids.
Using a camera located at the top of the
windscreen to identify lane markings on the
road and at the edges of the road (depending
on version), the system corrects the trajectory
of the vehicle while alerting the driver if it
detects a risk of unintentionally crossing a line
or hard shoulder (depending on version).
This system is particularly useful on motorways
and main roads.
Conditions for operation
The speed of the vehicle must be between
40 and 112 mph (65 and 180 km/h).
The driver must hold the wheel with both
hands.
The change of trajectory must not be
accompanied by operation of the direction
indicators.
The ESC system must not be faulty.
The ASR/DSC systems must be activated.
The system helps the driver only when
there is a risk of the vehicle involuntarily
wandering from the lane it is being driven
in. It does not manage the safe driving
distance, the speed of the vehicle or the
brakes.
Operation
Once the system identifies a risk of the vehicle
involuntarily crossing one of the lane markings
detected, it makes the correction to the
trajectory required to return the vehicle to its
initial path.
The driver will notice a turning movement of the
steering wheel.
This warning lamp flashes during
trajectory correction.
The driver can prevent the correction by
keeping a firm grip on the wheel (during
an avoiding manoeuvre, for example).
The correction is interrupted if the
direction indicators are operated.
If the system detects that the driver is not
holding the wheel firmly enough during
an automatic correction of trajectory,
it interrupts the correction. An alert is
triggered to encourage the driver to take
back control of the vehicle.
Driving
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